Melatonine Pharma Nord (Melatonin)

Melatonine Pharma Nord acts on melatonin receptors to help normalize circadian rhythm disturbances.

• Insomnia: reduces sleep onset latency and improves sleep continuity.
• Delayed sleep phase disorder: assists in advancing sleep timing to align with desired schedule.
• Jet lag: facilitates faster adaptation to new time zones by resetting the internal clock.

• Melatonin binds to MT1 and MT2 receptors in the suprachiasmatic nucleus, mimicking the endogenous hormone. Activation of these G‑protein‑coupled receptors modulates intracellular signaling pathways that promote nocturnal physiological processes, thereby advancing the circadian phase and encouraging sleep onset without directly inducing sedation.

Melatonin is generally well tolerated, but adverse reactions can occur.

Common Side Effects

• Dizziness: transient light‑headedness reported after ingestion.
• Headache: mild to moderate headache in some users.
• Nausea: occasional stomach discomfort or queasiness.
• Daytime sleepiness: residual drowsiness if taken too late.
• Vivid dreams: unusual or intense dreaming experiences.

Serious or Rare Side Effects

• Allergic reaction: rash, itching, or swelling indicating hypersensitivity.
• Severe rash or Stevens‑Johnson syndrome: rare cutaneous manifestations requiring immediate medical attention.
• Mood changes: rare reports of depression or anxiety exacerbation.
• Seizures: extremely uncommon but reported in susceptible individuals.
• Hormonal effects: potential impact on reproductive hormone balance in rare cases.

When considering melatonin therapy, several safety measures are recommended.

• Assess renal function: adjust use in patients with severe impairment.
• Avoid concomitant CNS depressants: increased risk of excessive sedation.
• Caution in shift‑work schedules: may affect alertness during night shifts.
• Pregnancy and lactation: limited data; use only if potential benefit outweighs risk.
• Store at ambient temperature: keep in the original pack, protect from moisture and light.

Melatonin can interact with other medicines, requiring attention to avoid adverse outcomes.

Major Interactions (Avoid)

• Anticoagulants (e.g., warfarin): may increase bleeding tendency.
• Immunosuppressants (e.g., cyclosporine): may alter melatonin metabolism and affect drug levels.

Moderate Interactions (Monitor Closely)

• CNS depressants (e.g., benzodiazepines): additive sedation.
• Oral contraceptives: may raise plasma melatonin concentrations.
• Antidepressants (e.g., SSRIs): potential enhancement of serotonergic effects.